Which is the correct port for AC recharge?

Look at the cap on the port, it should say L not H. You attach the connector to the Low pressure side as denoted by the L. If you are indeed on the correct port make sure you pull back the quick connector fully and fully press it onto the port before releasing the quick connector.

How to find a car’s low-pressure service port?

You can easily recharge your car’s air conditioner with A/C Pro and get your car blowing cold air again. To do so, you just need to find the low-pressure A/C service port on your car. In this video, we describe how to find your car’s low-pressure port. If you need help, visit our online port locator: http://bit.ly/R1sGss.

How to recharge the a / C system in your car?

This step-by-step video can help you learn how to recharge the A/C system in your car, truck, or SUV the right way using the right products and tools. Locate the compressor. The A/C compressor is belt-driven. It will have a large clutch and pulley on the belt side and two hoses or tubes coming out the back.

Where can I buy an AC recharge kit?

You can buy them from Harbor Freight for about $60. Or you can borrow them from a local auto parts store and return it within 90 days and get your money back. Although, expect to pay $130 upfront for the gauges from the auto parts store, so there is a large upfront investment. If you want to get the A/C Pro stuff, you can get it done for $20.

What to do if your AC pressure is low after recharging?

It may be worth checking the pressure once or twice after recharging in case the low refrigerant level was caused by a leak in the system. If you believe there is a leak, get a UV light and some UV dye so you can find the leak. The UV dye will make the hole visible when the UV light is shined onto the A/C components.

Where is the low side service port on an AC system?

Following the chart when recharging the system will ensure the system will operate efficiently. This port is typically found on the line connecting the accumulator and compressor. The high side fitting is located between the AC compressor and condenser. Consult the service manual to verify the exact location of the low-side service port.

How to recharge an A / C system using a rechargin kit?

In this step by step guide we will show you how to recharge the A/C system using a R134a rechargin kit. This method is used to top off an A/C system that has been working fine for 5 or 6 years. Toping off a system that is over 5 years old is normal as long as there are no major leaks or defective compnents.

Can a R134a recharger fit over a low pressure port?

R134a recharger nozzle won’t fit on low pressure service port. On my 2004 Pontiac Grand Am, a standard R134a recharger (identical to the one’s I use on both my Chevy trucks) will not fit over the low pressure service port. It seems as if the port is about an eigth of an inch too large for the nozzle on the recharger.

Why does the Freon hose not fit the low pressure port?

And I can not for the life of me fit the hose onto the low pressure port to charge my ac. I pressed the cap down and tried to fit it on the low pressure, I’m doing everything right, and I cant figure out why it wont fit. If I press it down while holding down the lever on the hose I will hear pressure escaping from the port but it wont attach.

When do I need to recharge my air conditioner?

When an air conditioning system loses its ability to cool properly, it may be necessary to recharge the system with new refrigerant. Keep reading for a R-134a A/C pressure chart and steps on how to recharge the A/C system when the system is low on pressure or has been vacuumed out following a repair.

How to recharge your car’s AC pressure chart?

This refrigerant is NOT compatible with R134A, and should be left to the professional to troubleshoot. Wipe away any dust with a clean rag and then remove the cap from low-side service port. Attach the charging hose to the low-side service port and ensure that you have a secure connection.

How to install a service port on a closed AC unit?

I show you how to install a service port on a closed air conditioner unit. You can use these bullet piercing valves on refrigerators and home ac units that are sealed off from the factory. You wanna make sure you install it on the low side Suction side. I perform this task on an old r22 rv roof top ac unit.

Why is my AC recharge kit not connecting?

You have to pull back on the locking ring at the bottom while pushing the connector down. Release the locking ring to lock the coupler in place. If that does not work, look at the connector while pulling and releasing the locking ring while it it is upside down to see if the ring is operating properly.

Do you need a low pressure a / C charger?

While it is possible the system is low and needs a charge, if the car is new to you and you are comparing it’s A/C performance to a MY2000 car, it may just be the way it performs. Most older systems (and I’m referring to older R-134a systems not the old old R-12 ones!) cooled better IMO.

How big is the charger port on a freon?

The fitting is slightly larger. Doing some Internet search – seems the R-1234yf freon has a slightly larger port connection. Does this car have 134A with the larger port connection?

How much refrigerant do I need to charge my AC?

There will be a sticker in your engine bay somewhere stating the amount of refrigerant needed to charge the system. Mine says 3.1 pounds, but most cars only need 1–2 pounds. Each can of refrigerant has 12 ounces in it, and you stick the can on the scale and wait for it to lose exactly 12 ounces, then your can is empty.

Why is my AC system not accepting new gas?

I remove the cap on the low side line, attach with the quick attach nozzle, release the gas, and nothing happens. The canister does not get cold or loose any of its fluid over 15 minutes, the pressure does not rise. There is a small amount of pressure in the system already but its just not accepting new gas.

Why does my AC not charge after charging vacume?

If there is not enough freon in the system, yes it will definately shut down the compressor. The a/c system needs to be put into a vacume for 15 to 30 minutes before you charge the system. The reason that it is going in slow is becouse there is air and moisture in the a/c system, that needs to be removed first.

What should the low side of the air conditioner pressure be?

The low side pressure in your air conditioning system should drop down significantly when your engine is running and your AC compressor is cycling on. When the compressor shuts off or you turn your car off the pressures in the system will equalize between the high and low side so the low side pressure will read much higher.

Is it OK to put vaccum on AC system?

Just make sure your system IS low, otherwise you will overcharge the system and cause more issues. As stated above, it is best always to just put a vaccum on your ac system, then refill the entire system with the appropriate amount of coolant for that system. Going along with the AC topic.